gilman



NITED STATES PATENT Orrrcn.

JOHN II. GILMAN, OF OTTAWA, ILLINOIS, ASSIGNOR TO THE KING &

' HAMILTON COMPANY, OF SAME PLACE.

c u LTlVATOR-TONG'U E.

SPECIFICATION fQrming part of Letters Patent No. 541,607, dated June 25, 1895.

Application filed February 27.1894. Serial No. 501,650. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN H. GILMAN, a citizen of the United States, residing at Ottawa, in the county of La Salle and State of Illinois, have invented certain new and .useful Improvements in Cultivator-Tongues, which are fully set forth in the following specification, reference being had to the accompanying drawings, in which Figure 1 represents a plan view of a culti vator embodying my invention; Fig. 2,a plan view of the tongue-bracket detached; Fig. 3, a bottom plan view of the same, and Fig. 4 a detail cross-section on the line 4: 4. of Fig. 1.

In the drawings Fig. 1 is upon a scale by itself; the remaining figures are upon another and enlarged scale.

My invention relates to cultivators, and is intended as an improvement upon the usual construction of the'tongue of this implement and the means wherebyit is connected to the main or carrying frame.

The invention consists in making the tongue and rear braces in separate pieces and in a metal bracket constructed and adapted to unite these parts and also to form a support for the shovel or plow beams by hinging the latter thereto.

With this improvement I avoid the splittongue, which is the construction commonly used in a certain class of cultivators and which is objectionable on several accounts, as will be hereinafter explained.

In the drawings I have shown a cultivator of a type generally known as the gopher, in which the shovel or plow beams are stifi, so far as vertical movement is concerned, butare adjustable laterally to set the shovels nearer together or farther apart as may be required. In all main features the implement here shown is of ordinary construction, and no particular description of the parts is required except those to which my improvement relates.

The main beam, A, which is a stiff straight bar in a single piece is at the rear of the implement and arranged transverely thereof as usual. The shovel standards are connected to this beam and depend therefrom in a nearly vertical direction, as usual; they are also connected to the beam, so as to be adjusted lengthwise thereof for thepurpose of adjusting the shovels, as mentioned above. This connection is provided by making slots, (1, near the respective ends of the beam and running lengthwise thereof. In the construction heretofore employed the tongue has usually been carried back to this beam and there secured, being split up to a point at some distance ahead and about where the forward ends of the shovel beams or draft beams are to be secured. This division of the tongue at its rear end and spreading of the parts of the split end, for bracing in the attachment to the main beam, is'objectionable for it makes a weak vplace at the point of divergence and it is difficult to secure the tongue at this point so as to make itstrong enough for required use; and furthermore, there is some inconvenience in hinging or pivoting the forward ends of the shovel beams to a suitable support at this point.

' In my improvement I make the tongue, B, short, extending it back only about to the split in the old constructionthat is, about where the split commences. The brace bars, 0, are secured respectively at their forward ends to the rear end of this tongue by means of a bolt, 17, passing through all three parts, as seen in Fig. 1, the ends of the braces being arranged on opposite sides of the tongue. From their point of attachment to the tongue these brace bars diverge slightly to the main bar, A, to which they are secured at their rear ends by bolts, or any other suitable device.

For the purpose of connecting the tongue and braces together and to provide a strong joint at this connection, I have devised a kind of box or bracket, D. This bracket is made of iron or any other suitable metal and may be cast or wrought. Its main portion or body, (1, is of channel form much longer than wide and rectangular in cross-section, so that a right angled channel or groove, (1, will appear on one face of the piece, which is the under side when in place. At the side edges of this body and at what is the rear end thereof in position, flanges, d extend out horizontally a short distance, as seen in Figs. 2 and 3, being carried some distance along the bracket; then these flanges are narrowed, making for the rest of the distance, nearly to the other end, a more shallow flange section, d then just at the front end of the bracket this flange is abruptly extended outward, even beyond the outer edge of the rear flange, (P, so as to provide flange sections, (1*, shaped something like ears. The rear flange sections, 01 are provided with perforations, (1 the front or car flange sections, d with similar perforations, d, and the bodywith a perforation, 61 at each end. The bracket may also be strengthened by small angular web braces, (1 set along the length of the bracket, and spaced as desired in theangle between the body and the side flanges thereon, described above. The groove or channel in this bracket is adapted to receive the rear end of the tongue, as seen in Fig. 1, and the latter is secured in its seat by bolts, I), passing through the apertures, the bracket or box being set over the upper side of the tongue. The front ends of the brace bars, 0, are brought in against the sides of the tongue just under the rear end flanges, (F, as seen in Fig. 1, and are fastened to said flanges by bolts, 0, passing through the perforations, (Z in the brackets, and is also secured to the tongue in this position by the through bolt, b. The shovel beams or draft beams, E, are of ordinary construction, but are pivoted at their.

are provided with a washer nut or any other suitable device, by means of which the ends of the brace bars are adjustably secured. The double-tree, F, is arranged as usual just below the draft beams and connected at its respective ends by link rods, G, to the shovel pieces, and the bracket or box for partially inclosing the same and securing them together, I avoid the objection to split tongues referred to above and at the same time obtain a very strong joint at this point, the box being strong and securely braced so as to resist strain in all directions. It is obvious also that these parts are all readily made and may be put together as readily. The bracket also provides a pivot connection at the forward ends of the draft beams, which are pivoted directly to the bracket. This bracket, therefore, forms in a single piece a strong connection between the tongue and the diverging braces, at its rear end and the forward ends of the draft beams.

1 do not wish to be understood as limiting my improvement to the precise construction in all the details here set forth, for mechanical changes maybe made in these particulars.

Having thus described my invention, what I claim to be new, and desire to secure by Letters Patent, is

In a cultivator, a bracket or box, D, pr0- vided with a channel, d, running lengthwise thereof, side flanges, d and d", at the respective ends thereof, the tongue, 13, set in the channel in said bracket and secured to the latter, the brace bars, 0, secured to the bracket flanges, (Z and draft beams, E, piv oted to the ear flanges, 01 at the forward end of the bracket, substantially as described.

JOHN H. GILMAN. lVitnesses:

O. S. PHELPS, C. E. TRYON. 

